1389832089 has 8 divisors (see below), whose sum is σ = 1853994912. Its totient is φ = 926112000.

The previous prime is 1389832079. The next prime is 1389832117. The reversal of 1389832089 is 9802389831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1389832089 - 2⁵ = 1389832057 is a prime.

It is a super-2 number, since 2×1389832089² = 3863266471228207842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1389832019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103287 + ... + 115964.

It is an arithmetic number, because the mean of its divisors is an integer number (231749364).

Almost surely, 2^1389832089 is an apocalyptic number.

It is an amenable number.

1389832089 is a deficient number, since it is larger than the sum of its proper divisors (464162823).

1389832089 is a wasteful number, since it uses less digits than its factorization.

1389832089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221367.

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 1389832089 is about 37280.4518347082. The cubic root of 1389832089 is about 1115.9740900127.

The spelling of 1389832089 in words is "one billion, three hundred eighty-nine million, eight hundred thirty-two thousand, eighty-nine".